" The machine doesn't come with a built-in optical drive for reading CDs and DVDs, a feature Jobs says consumers won't miss because they can download movies and music over the Internet and access the optical drives on other PCs and Macs to install new software. They can buy an external drive, however, that will retail for $99."

Gotta love Jobs telling people what they need or don't need, rather than letting the consumer tell Apple.  There's a reason there are far more PCs being used, this is one of them.

Downloading content is terrific, but people like to store files and play content from DVDs.  Maybe they want to rent from Blockbuster rather than purchase from Apple.

The product looks good as an on the road computer, but it will be a very pricey option.